Boot Camp Problem partitioning drive

I don't know if this is in the right spot.

The disk cannot be partitioned because some files cannot be moved.

Back up the disk and use Disk Utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again.

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This is what I get when I try to partition my hard drive. I'd have been trying to fix it but no success.

Any help would be appreciated.

Boot the machine with your OS disc holding down C at boot up.

Go into the Utilities menu and open up Disk Utility. Run Repair Disk and then try again.

If that doesn't fix it, you may need to grab iDefrag and defrag the drive.

Or, clone the drive to an external and then clone it back.

I think i had a message a while back along the lines of this, i just did a clean install which solved the problem.